Detection limit would be needed to consider the variance among each sample...

Question

This presentation demonstrates the usefulness for dose reconstruction using EPR tooth dosimetry showing the excellent reproductivity for each sample by using the unique sample preparation method.

To discuss about the detection limit, it would be needed to consider the background variance among each sample referring  ISO 11929:2010 "Determination of the characteristic limits (decision threshold, detection limit and limits of the confidence interval) for measurements of ionizing radiation — Fundamentals and application"...

Answer 1

The additive dose method itself is not affected by the variance among different samples.
However to detect the additional dose due to an accidental exposure, we might have to think about the variance of background signals in the case of added doses would be limited and if we do not want to  miss this small added doses.